CN216812771U - Driving chain wheel - Google Patents
Driving chain wheel Download PDFInfo
- Publication number
- CN216812771U CN216812771U CN202220159154.5U CN202220159154U CN216812771U CN 216812771 U CN216812771 U CN 216812771U CN 202220159154 U CN202220159154 U CN 202220159154U CN 216812771 U CN216812771 U CN 216812771U
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- wheel body
- heat dissipation
- driving
- chip removal
- chain
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Abstract
The utility model provides a driving chain wheel, which comprises a wheel body, wherein the outer cylindrical wall of the wheel body is provided with a plurality of driving grooves which are uniformly distributed along the circumferential direction of the wheel body, and the driving chain wheel is characterized in that: one end face of the wheel body is provided with chip removal heat dissipation holes which are equal in number and are correspondingly arranged with the driving grooves, and the chip removal heat dissipation holes are communicated with the bottoms of the driving grooves; the wheel body center is equipped with the mounting hole, the pore wall is equipped with the keyway in the mounting hole, the wheel body still is equipped with the fixed orifices that encircles the mounting hole setting. The chain has the advantages of facilitating heat dissipation and chip removal, effectively prolonging the service life of the chain and the service life of the chain.
Description
Technical Field
The utility model relates to the field of chain wheels, in particular to a driving chain wheel.
Background
The variety of wood harvesters is various, wherein in areas with highly developed automation, mechanical equipment is often adopted for felling, and the used equipment is also called a felling vehicle and is generally provided with a crawler or a wheel type chassis which is matched with a mechanical arm, a mechanical arm positioned at the tail end of the mechanical arm and a chain saw to carry out operations such as felling, delimbing, cutting off and the like on trees; therefore, the working environment of the chain saw on the equipment belongs to high-power high-load operation, and compared with the traditional handheld electric saw and chain saw, the severe using environment of the chain saw makes the common chain wheel more prone to premature wear and is complex to replace.
SUMMERY OF THE UTILITY MODEL
Based on the above problems, the present invention aims to provide a driving sprocket which is easy to dissipate heat and remove chips, easy to replace and capable of effectively prolonging the service life of the driving sprocket and the service life of a chain.
Aiming at the problems, the following technical scheme is provided: a driving chain wheel comprises a wheel body, wherein a plurality of driving grooves are uniformly distributed on the outer cylindrical wall of the wheel body along the circumferential direction of the wheel body, chip removal heat dissipation holes which are equal in number and correspond to the driving grooves are formed in one end face of the wheel body, and the chip removal heat dissipation holes are communicated with the bottom of the driving grooves; the wheel body center is equipped with the mounting hole, the pore wall is equipped with the keyway in the mounting hole, the wheel body still is equipped with the fixed orifices that encircles the mounting hole setting.
In the structure, the driving chain wheel belongs to the driving wheel, the driving groove of the driving chain wheel is meshed with the chain of the chain saw and used for driving the chain to rotate, and the chain can bring wood chips into the chain when felling the trees, so that the wood chips are rolled into the chain and the driving groove, and the chip removal heat dissipation holes can effectively discharge the wood chips entering the driving groove; the mounting hole is used for linking to each other with the drive shaft, and its keyway and the epaxial key adaptation of drive, the fixed orifices passes through the bolt and is fixed in the wheel body on the flange of drive shaft, can change driving sprocket through dismantling the bolt.
The utility model is further provided that the number of the key grooves is two, and the two key grooves are arranged at an interval of 180 degrees along the circumferential direction of the mounting hole.
In the structure, the double key grooves can effectively improve the load transmitted by torque, and are favorable for stabilizing the stress of the wheel body.
The four fixing holes are uniformly distributed along the circumferential direction of the mounting hole, and the two key grooves are positioned between the adjacent fixing holes.
In the structure, the uniform arrangement of the fixing holes can be ensured, so that the wheel body is more stably fixed.
The utility model is further arranged in such a way that the opening direction of the chip removal heat dissipation hole is the same as the axial line of the wheel body, the cross section of the chip removal heat dissipation hole is D-shaped, and one side of the arc edge of the inner wall of the chip removal heat dissipation hole is superposed with the bottom of the driving groove.
In the above-mentioned structure, guarantee to be ground into the saw-dust in the drive groove by the chain can directly reach the chip removal louvre downthehole, then discharge from the chip removal louvre.
The utility model is further arranged that one side of the non-arc edge of the inner wall of the chip removal heat dissipation hole is inclined from the bottom of the chip removal heat dissipation hole to the orifice of the chip removal heat dissipation hole and gradually gets away from the center of the wheel body.
In the structure, when the wheel body drives the chain, the driving groove at the meshing position of the wheel body and the chain is filled with the poking teeth of the chain, and at the moment, under the action of centrifugal force, sawdust can obliquely slide along the non-circular arc edge obliquely arranged on the sawdust dissipating hole and is thrown out of the sawdust dissipating hole; meanwhile, the driving groove at the non-meshing position of the chain can be subjected to the action of centrifugal force, and air is pumped into the driving groove from the chip removal heat dissipation hole and then discharged from the driving groove, so that the air cooling purpose is realized.
The utility model is further set that the inclination angle of the non-circular arc edge of the inner wall of the chip removal heat dissipation hole is 5-30 degrees.
In the above structure, the inclination angle is preferably 15 degrees.
The utility model is further provided that the notch of the driving groove is provided with an engaging chamfer.
In the structure, the meshing chamfer can facilitate the engagement of the shifting teeth of the chain.
The utility model is further arranged that the drive groove is located at a central position in the axial direction of the wheel body.
In the structure, the strength of two sides of the driving groove can be effectively ensured.
The utility model has the beneficial effects that: the driving chain wheel belongs to a driving wheel, a driving groove of the driving chain wheel is meshed with a chain of a chain saw and used for driving the chain to rotate, wood chips can be brought in by the chain during felling, and are rolled into the chain and the driving groove, so that the wood chips entering the driving groove can be effectively discharged through the chip removal heat dissipation holes, and meanwhile, air flow generated by centrifugal force can be used for assisting in heat dissipation of the wheel body during rotation, so that efficient work of the wheel body is guaranteed, and loss of lubricating oil and abrasion of the driving groove and the chain are reduced; the mounting hole is used for linking to each other with the drive shaft, and its keyway and the epaxial key adaptation of drive, the fixed orifices passes through the bolt and is fixed in the wheel body on the flange of drive shaft, can change driving sprocket through dismantling the bolt.
Drawings
Fig. 1 is a schematic overall perspective structure of the present invention.
Fig. 2 is a schematic view of a full-section structure in a first cutting direction of the present invention.
Fig. 3 is a schematic view of a full-section structure in a second cutting direction of the present invention.
FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention.
The reference numbers in the figures mean: 10-a wheel body; 11-a drive slot; 111-meshing chamfer; 12-chip removal heat dissipation hole; 121-circular arc edge; 122-non-circular arc edge; 13-mounting holes; 131-a keyway; 14-fixing hole.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1 to 4, the driving sprocket shown in fig. 1 to 4 includes a wheel body 10, a plurality of driving grooves 11 uniformly distributed along a circumferential direction of the wheel body 10 are formed in an outer cylindrical wall of the wheel body 10, chip removal heat dissipation holes 12 which are equal in number to the driving grooves 11 and are correspondingly formed in one end surface of the wheel body 10, and the chip removal heat dissipation holes 12 are communicated with a bottom of the driving grooves 11; the wheel body 10 is provided with a mounting hole 13 at the center, a key groove 131 is arranged on the inner hole wall of the mounting hole 13, and the wheel body 10 is further provided with a fixing hole 14 arranged around the mounting hole 13.
In the structure, the driving chain wheel belongs to a driving wheel, the driving groove 11 of the driving chain wheel is used for being meshed with a chain of a chain saw and used for driving the chain to rotate, wood chips can be brought into the chain when the chain is cut down, and are rolled into the chain and the driving groove 11, so that the wood chips entering the driving groove 11 can be effectively discharged through the chip removal heat dissipation holes 12, and meanwhile, when the driving chain wheel rotates, air flow generated by centrifugal force can be used for assisting the heat dissipation of the wheel body 10, the efficient work of the wheel body 10 is ensured, and the loss of lubricating oil and the abrasion of the driving groove 11 and the chain are reduced; the mounting hole 13 is used for connecting with a driving shaft, the key groove 131 of the mounting hole is matched with a key on the driving shaft, the wheel body 10 is fixed on a flange of the driving shaft through bolts by the fixing holes 14, and the driving chain wheel can be replaced by detaching the bolts.
In this embodiment, there are two key slots 131, which are arranged at an interval of 180 degrees along the circumferential direction of the mounting hole 13.
In the above structure, the double key grooves 131 can effectively lift the load transferred by the torque, which is beneficial to stabilizing the stress of the wheel body 10.
In this embodiment, the number of the fixing holes 14 is four, and the fixing holes are uniformly distributed along the circumferential direction of the mounting hole 13, and the two key slots 131 are located between the adjacent fixing holes 14.
In the above structure, the uniform arrangement of the fixing holes 14 can be ensured, so that the wheel body 10 is more stably fixed.
In this embodiment, the direction of the chip removal heat dissipation hole 12 is the same as the axial line of the wheel body 10, the cross section of the chip removal heat dissipation hole 12 is D-shaped, and one side of the arc edge 121 of the inner wall thereof coincides with the bottom of the driving groove 11.
In the above-mentioned structure, guarantee by the saw-dust of chain grinding in the driving groove 11 can directly reach the chip removal louvre 12 in, then discharge from chip removal louvre 12.
In this embodiment, one side of the non-circular arc edge 122 (i.e. the hole wall near the outer edge of the wheel body) of the inner wall of the chip removal heat dissipation hole 12 is inclined from the bottom of the hole of the chip removal heat dissipation hole 12 to the hole opening of the chip removal heat dissipation hole 12 and gradually away from the center of the wheel body 10.
In the above structure, when the wheel body 10 drives the chain, the driving groove 11 at the meshing position with the chain is filled with the teeth of the chain, and at this time, under the action of centrifugal force, the sawdust can obliquely slide along the non-arc edge 122 obliquely arranged on the sawdust heat dissipation hole 12 and is thrown out of the sawdust heat dissipation hole 12, if the non-arc edge 122 of the sawdust heat dissipation hole 12 is parallel to the axis of the wheel body 10, the sawdust will be always accumulated at the non-arc edge 122 of the sawdust heat dissipation hole 12 under the action of centrifugal force and is difficult to slide relative to the axis of the wheel body 10 and be discharged; meanwhile, the driving groove 11 at the non-meshing position of the chain can be subjected to centrifugal force to suck air into the driving groove 11 from the chip removal heat dissipation hole 12 and then discharge the air from the driving groove 11, so that the air cooling purpose is realized.
In this embodiment, the inclination angle a of the non-circular arc edge 122 on the inner wall of the chip removal heat dissipation hole 12 is 5 to 30 degrees.
In the above structure, the inclination angle a is preferably 15 degrees.
In this embodiment, the notch of the driving groove 11 is provided with an engaging chamfer 111.
In the above structure, the engagement chamfer 111 can facilitate engagement of the teeth of the chain.
In this embodiment, the driving groove 11 is located at a central position in the axial direction of the wheel body 10.
In the above structure, the strength of both sides of the driving groove 11 can be effectively ensured.
In this embodiment, the wheel body 10 is made of a wear-resistant alloy material.
Examples of the above structure include S2 alloy steel, 20Cr, 20CrMnTi, 20MnB, and 20 CrMnTo.
The utility model has the beneficial effects that: the driving chain wheel belongs to a driving wheel, a driving groove 11 of the driving chain wheel is meshed with a chain of a chain saw and used for driving the chain to rotate, wood chips can be brought into the chain when the chain is cut down, and are rolled into the chain and the driving groove 11, so that the wood chips entering the driving groove 11 can be effectively discharged through the chip removal heat dissipation holes 12, and meanwhile, when the driving chain wheel rotates, air flow generated by centrifugal force can be used for assisting in heat dissipation of the wheel body 10, efficient work of the wheel body 10 is guaranteed, and loss of lubricating oil and abrasion of the driving groove 11 and the chain are reduced; the mounting hole 13 is used for connecting with a driving shaft, the key groove 131 of the mounting hole is matched with a key on the driving shaft, the wheel body 10 is fixed on a flange of the driving shaft through bolts by the fixing holes 14, and the driving chain wheel can be replaced by detaching the bolts.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.
Claims (7)
1. The utility model provides a driving sprocket, includes the wheel body, the outer cylinder wall of wheel body is equipped with a plurality of driving grooves that set up along its circumferential direction equipartition, its characterized in that: one end face of the wheel body is provided with chip removal heat dissipation holes which are equal in number and are correspondingly arranged with the driving grooves, and the chip removal heat dissipation holes are communicated with the bottoms of the driving grooves; the wheel body center is equipped with the mounting hole, the pore wall is equipped with the keyway in the mounting hole, the wheel body still is equipped with the fixed orifices that encircles the mounting hole and set up.
2. A drive sprocket as defined in claim 1, wherein: the key slot is two, sets up along mounting hole circumferential direction interval 180 degrees.
3. A drive sprocket as defined in claim 1 or 2, wherein: the fixed orifices are four and are uniformly distributed along the circumferential direction of the mounting hole, and the two key grooves are positioned between the adjacent fixed orifices.
4. A drive sprocket as defined in claim 1, wherein: the chip removal heat dissipation holes are formed in the same direction as the axis of the wheel body; the hole wall of the chip removal heat dissipation hole close to one side of the outer edge of the wheel body is inclined from the bottom of the hole of the chip removal heat dissipation hole to the direction of the hole opening of the chip removal heat dissipation hole and gradually away from the center of the wheel body.
5. A drive sprocket as defined in claim 4, wherein: the inclination angle of the non-arc edge on the inner wall of the chip removal heat dissipation hole is 5-30 degrees.
6. A drive sprocket as defined in claim 1, wherein: and a meshing chamfer is arranged at the notch of the driving groove.
7. A drive sprocket as defined in claim 1, wherein: the driving groove is located in the middle of the wheel body in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220159154.5U CN216812771U (en) | 2022-01-20 | 2022-01-20 | Driving chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220159154.5U CN216812771U (en) | 2022-01-20 | 2022-01-20 | Driving chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216812771U true CN216812771U (en) | 2022-06-24 |
Family
ID=82065594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220159154.5U Active CN216812771U (en) | 2022-01-20 | 2022-01-20 | Driving chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216812771U (en) |
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2022
- 2022-01-20 CN CN202220159154.5U patent/CN216812771U/en active Active
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